A) 60 B) 23 C) 51 D) 50
A) 17 B) 1 C) 7 D) 3
A) 45 B) 103 C) 9 D) 5
A) 15 B) 3 C) 33 D) 4
A) Alkali Metals B) Transition Metals C) Alkaline Earth Metals D) Halogens E) Noble Gases
A) 2 B) 7 C) 14.007 D) 14
A) 56 B) 6 C) 137 D) 2
A) 2 B) 6 C) 7 D) 1
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 96 B) 5 C) 42 D) 6
A) 3 B) 7 C) 4 D) 2
A) proton/+, electron/-, neutron/uncharged B) proton/+, neutron/-, electron/no charge C) proton/-, electron/+, neutron/no charge D) proton/+, electron/neutral, neutron/-
A) neutrons and electrons B) protons and neutrons C) protons and electrons D) protons and orbits
A) Mercury and Thallium B) Carbon and Boron C) Argon and Krypton D) Phosphorus and Silicon
A) the atom is mostly empty space B) electrons orbit totally randomly around the nucleus C) atoms are tiny solid spheres D) the atom is a positively charged sphere with electrons embedded in it
A) region B) period C) nucleus D) group
A) Lithium B) Beryllium C) Magnesium D) Chlorine
A) number of protons B) group number C) period number D) number of neutrons
A) greater than the mass number B) the same as the number of energy levels C) the mass number minus the atomic number D) the same as the number of electrons
A) State of Matter B) Number of Neutrons C) Group Number D) Period Number
A) Francium B) Nitrogen C) Carbon D) Manganese
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by adding protons B) by losing protons C) By adding or losing electrons D) by adding electrons
A) by adding electrons B) by losing electrons C) by adding protons D) by losing protons
A) by adding electrons B) by losing electrons C) by adding protons D) by losing protons
A) by adding neutrons B) by adding electrons C) by adding protons D) by adding or losing neutrons
A) same as the mass number B) mass number divided by 2 C) same as the atomic number D) difference between the atomic and mass number
A) the difference between the mass and atomic number B) the same as the number of neutrons C) the same as the mass number D) the same as the atomic number
A) Hg and C B) Mg and F C) Na and Li D) B and O
A) Ba and Ra B) Mg and Cl C) Li and Po D) F and At
A) The halogens B) The noble gases C) The transition metals D) The alkali earth metals E) The alkali metals
A) The noble gases B) The transition metals C) The halogens D) The alkali metals
A) 17 B) 18 C) 1 D) 4 E) 8
A) how many protons there are B) how reactive they are C) how many electrons there are D) how many electron levels there are
A) the number of neutrons B) the number of protons C) how many electrons the atom has D) how many valence electrons the atom has
A) Sodium B) Iron C) Mercury D) Fluorine E) Silver
A) Al B) Au C) Li D) F E) H
A) Mg B) I C) Li D) Cs E) Al
A) the number of electrons B) the number of neutrons C) the number of protons
A) Dalton B) Mendeleev C) Bohr D) Newton E) Lewis |